---
title: "Mr Carl Ludwig Oliver Haarmann — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8d1ac5c8-85b5-4d72-8b98-440b0ff0bf5e
json: https://whiteintel.dev/api/public/dossier/8d1ac5c8-85b5-4d72-8b98-440b0ff0bf5e
identifier: psc:sLxViXX3rq9uFrAujURFCFCQbkg
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Carl Ludwig Oliver Haarmann

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:sLxViXX3rq9uFrAujURFCFCQbkg`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8d1ac5c8-85b5-4d72-8b98-440b0ff0bf5e  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8d1ac5c8-85b5-4d72-8b98-440b0ff0bf5e  

## Ownership & control

### Holdings / subsidiaries

- **GRESHAM HOUSE LIMITED** (beneficial owner) — https://whiteintel.dev/entity/c7409577-1184-5a67-9c48-95c1d4621958

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Carl Ludwig Oliver Haarmann**. Human view: https://whiteintel.dev/entity/8d1ac5c8-85b5-4d72-8b98-440b0ff0bf5e · Structured JSON: https://whiteintel.dev/api/public/dossier/8d1ac5c8-85b5-4d72-8b98-440b0ff0bf5e._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._